White spaces represent unoccupied TV spectrum that could be used for wireless
communication by unlicensed devices, just like Wi-Fi and ZigBee devices can use
the ISM bands. This low-frequency spectrum enables high bandwidth communication
at long transmission ranges. In this paper, we propose a system that leverages
the
benefits of white spaces for sensor networks, with a view to overcoming the
limitations associated with coverage, bandwidth, time synchronization, and
scalability of current wireless sensor networks (WSNs). However, the applications
and requirements of WSNs pose interesting challenges for adopting white spaces.
In this challenge paper, we address both the opportunities and the challenges of
using white spaces for WSNs.